I used Midwest multiple times and as recently as this spring. I used a scale, but they remeasured and gave me more than I anticipated. Win!!!!
For my most recent set of finds, I reluctantly went to the Facebook marketplace and placed an ad for slightly over the spot price. One item sold for 10% over spot and the other was 22% over spot.
I talked to both buyers and it turns out both of them buy gold, even scrap gold, as a means of investing/diversifying their retirement portfolio. Both buyers left me their private contact info and an open invite to buy anything else I find at least 10% over spot. One of the buyes is brand-savy and said he is interest and buying well above spot price for jewelry with notable hallmarks / branding.
So yeah, look well into your options!